XNA Game Studio 3.0 was released today. All the goodies can be found over at the Creators Club website: http://creators.xna.com/
There is a new starter kit. It is called 'Platformer' and it creates a project for all three platforms (Windows, Xbox 360 and the Zune). It is a great way to dig in and see some of the ways to use one code base to run a game on multiple platforms.
Don't delay, go download your very own copy of XNA Game Studio 3.0 today!